1. Section 4.1 Radian and Degree Measures
You will: be able to describe angles, use radian measure, use degree measure, angle to model and solve real-life problems

4. Coterminal Angles
Two angles are _____________________when they have the same ________________ and terminal sides. For instance, the angles 0 and 2π are coterminal, as are the angles π/6 and 13π/6. You can find an angle coterminal to a given angle by adding or subtracting 2π.

7. Sector Area
For a circle of radius r, the area A of a sector with a central angle Ѳ is
A = .5 𝒓 𝟐 Ѳ
Find the area of the clock covered by the pendulum as it swings through.
A sprinkler on a golf course fairway sprays water over a distanve of 70 feet and rotates through an angle of 120
Degrees, find the area of the fairway watered by the sprinkler.
Homework section P ,15,17,25,29,35,42,44,51,53,57